Extension hood for wind stackers



Aug. 2l, 1928.

C. MCNABB EXTENSION Hoon FOR WIND STACKERS Filed oct. i2, 1925 Patented Aug.` 241i, `1928.Y

, UNITED] STATES PATENT oFFiciz.

CHARLIE MGNABB, 0F sommen,- AIOWA. y y

EXTENSION HOOD Fon WIND ,srAoKERs Appiieationnid october 12, vieras.Y serial No. sano?.

kMy invention haste do with an attachment for wind stackers, which. canbe inounted'on the wind stacker pipe and in combination with the Vpipe and hood maybe adjusted to control the strawvdischarged from the wind stacker l'or making "a better staokthan has hitherto been possible. y s e y i i' Y More partieularly it is my object `to .pro vide an attachment wliich'ean bein'ouiit'edon the wind stacker or easily V removed therefrom and which when in use canv be readilyfadjusted for controlling the discharge of straw effectively. l

, Vitli these and,y other objects ifi-view, my invention consists in the arrangement,,con-

struction and combination of the various partsol2 my extension hoodforwind stackers, whereby the objects contemplated are attained, as hereinafter more fully set lorth, pointed out inmy claims, and illust-rated in the accompanying drawings, in which:

i Figure 1 shows aside lelevation olil a Wind stacker equipped with an extension hood em-` bo'dying my invention. y ,v r y Figure 2 is a detail, transverse, kvsectional ,y view taken on the line 2,-2 of Figurefl. y ,y

y and parts being omitted.

through with rains.

Figure 3 is a similar view taken on the line the pipe kused inhordinary wind stacker-s for` conveying strawy from` the separator tothe stack. 4` i 2 The wind stacker. pipe 10 is ordinarily pro-` videdwithaliood 11. l

Qh'eetion has been made to ordinary wind stackers for the reason that the deposit of straw couldk not be accurately enough controlled. i

It dillicult with ordinary wind stacker to arrange the strawV in a s mmetrical staclr C) Y which. can he properlyproppedfoutrin such,V

aV manner as to be less likely to become Awet It is my, purpose topiovidein combination with the wind stacker, having thepipe 10 and ordinary hood 11, anattachment which can be readily mounted on or detached trom l the wind stacker,` and which canbe readily andeasily adjusted for securing amuchfniore accurate control ol: the piling of thestraw than is otherwise possible.) f ,f

My improved extension hood` comprises a straw guide deyice, wliichinay havevarious forms, but inthe liorin hereillustrated, com# prisesa cross Yplate 11, having projecting `downwardly tlierelroin a plurality otspaced lingers 12.

,Pivoted lto theplate 11, preferably nearvthe lowerfedge' thereolI are rigid arms 13 spaced from eachother asullicient distance `to re` ceive between them thepipe '10. These arms 13 are mounted on the pipe 10 for longitudinal 'ac ljustment. The lingers 12 then stand spaced in liront ol the pipe10, and when the strawisdischarged againstthem will cause it to drop downwardly, so that the arrangement of the strawon the stack can bettefil controlled. y, l

"',lflie plate 1p1a is adjustable onvthe` pivots 14 of the arms 13 by. means hereinafter rel'erred to,;so toy regulatethe angle of the` lingers 12 kwith relation "to the line voli discharge of the straw lroni the hood 11.`

' Springs, 15 connect Sonie Oli the lingers 12 witli the arins 13, as shown in Figures 1 and 11,3101" tending topulljthe `lower parts ,ofthey lingers toward the hood 11, and a, means for adjusting the lingersagainst the tension of the springs ,is be later referred tol' f `I now describe the manner of mount-r i'ngthe arms 13,011 the pipe 10. ,y

.On the pipe 10,1` mount spaced clamps, each comprising an upper clampy member 16 and a lower `clamp member 17'.v These clamp members 16 and 17 haveopposite flanges 1S) connected by suitable `bolts and nuts 20 and 2l.

f The upper llange f18 ot each volf` the clamp i devices projectsy laterz'illy and has spaced upwardlypro'jectiiigrbracletlingers 22. Ene

tended betweenthe bracket lingers 22 on each side oli the rear clampfiiearthe lower ends of the lingers isa removable bolt 23 held in place by a Cotter pin or the like 2% proviileol.` This means e Mountedy betweenthe lupper ends of each r'ear'pair of lingers 22 is a suitable roller Mounted between the lowerparts of` eachjlforward pair of lingers 22 isa roller 26,.; LBolts 27k` areniounted inthe upper parts ofeach Jforward'pair or' lingers22, as shown in Figure 2, and are held in yplace, bycotter pins 28, or

the like.` .e 7 l y y The rollers `25and 26k in each instance comprise afspindle ory theA like 29`on whichis a fingers 22.` A 'l'hey set screw 311s used fior locking one of the arms`13l in various positions of the',v

tra

LII

l ingers22 and are adjusted longitudinallyfor Y arranging the fingersv 12 at the proper dis-Vv roller sleeveA3O,as shown at the rightfhand side of Figure 2. n

The pair ot lingers 22 on one side of the rear bracket are spaced aparta little-.farther than are the members o the other pairs'otI fingers 22, and in the outer'one-oiisaidimore is mounted a set It will' be seenfl that the arms` l may be slidilongitudinally and that their weight rests` on"therollersv at ythe lower parts ofthe forward lingers and against' the rollers.-

25 at the upper parts ofthe rearward longitudinal adjusti'nent of Said arms;

by curved, diagonal brace members 32 and 33 connected at theircommon center, as shown in Figure 4l This rbrace structure, ,made up or themembersf32uand 33,'rests `on top the pipe ;y Y

When the attachment has been installed on the wind stacker pipe 10, a flexible member 34 is fastened tothe upper, central part of the plate llajasthrough the `hole 35, and is then extended rearwardly `alongthetop ot thepipe 10, preferably through'pa' point y36k formed wherethe braces-33and 32 cross eachother,

and thence to aviasteninor member 37 on the l .n A a;

pipe 10;

' Bydrawing therope or lflerxiblehmemlber 34v taut against the tension of the springs y15,. the iingers 12 may be adjusted at various angles with relation to the arms 13, aswill ings. y n l 'lheyinner end of,` the setscrew maybe provided with a wear plate 3S tobear against be obvious from anexaminationoi the 'drawthe adj acent arm 13y as illustratedin Figures.

3 and '5. K 1n vthe. actual use of my 'lmprovedeXtension hood for wind stackers, the arms 13 arey mounted between the yrespective pairs of tance from the hood 11A and are then vlocked' by means of the set screw 31.

It will be seen that the attachment may then be swung up or down or laterallyA with the pipe' 10 and hood 11.

The rope 34 may bejdrawn'ti'ght enough to` incline the` fingers 12l away from the hood 11 at such an angle asto cause the ingers12 to be `practically ineffective.

On the other hand, by loosening the rope and permitting they springs to drawthe lower parts of the iingers121towardthe hood 11, the angley ot said'iingers with relation to desired angle, f

In Figurefl, Ilia-ve'shown the `lilrowsr 38., indicatingv the 'direction of` the blast"oiia'irlfv andthe straw'irom the-hoodto the''ngers' l12 andhave shown the'arrows indicatin j the'` direction ot' the dropping of thekstraw after it strikes the lingers 12'.l

By usingthe spacedA lingers 12, itis oblA ,viens that 'the airmay pass thefingers'freely,

even though the fingers stop the straw. j `The longitudinal adj ustment, of the; arms 13 on the pipe 10 and the angular adjustment oiI rthe iingers'12 with Vrelation to the arms- To" further more satisfactorily supportethey arms 1'3on the pipe'll), I connect theaims 13" 13permits such a variety of arrangements for the attachment as make'sit possible to very metrically than would otherwise be possible,

' ydownwardly yor topermit it to 'slide at the which will stand better against the 4wind,andl` j which Vcany be built to withstand" moisturel much better than the stack built -Withan ordi"-v narywind stacker.

I It'will be seen that by removing thepins 27 land '23 the arms 1'3fmay bexliftedf trombetween theiorward fingers 22 landfthen slidA from between the rearward pairszof ners,22,`

'and the device,` except for the clamps,A may` thus' be-easily vtaken olf-the windstfuiker'for--` storage during the winter monthsv or wherejt is not desired to use the attachment. i

Preferably, I provide a metal hood L5050i' the like supported 'on the forward 'parts of the arms 13 to kcep'thecha and light strawl from blowing upwardly or scattering. yThe forward end of the hood 50 is connected withc rthe vplate ,11"l by' a col'lapsiblehood'section '51' of canvas yor any suitable material and 'construction for permitting :tree pivotal Inove-k ment of the plate 11a on the pivots 14.l

Changes `may bemade in the details ofl the 1 structure and *the arrangement vof the' parts of my improved device without departingl from the real spirit and purpose of my'in'ven-Q tion, and it is myfintention to .cover by' claims, any modified forms of lstructure or use,`

of mechanical equivalents, 4which may be' p site sides of said clamp devices, rollers be-A necting some of said fingers tween the forward pairs of fingers near the lower parts thereof, rollers vbetween the rearward pairs of fingers between the upper parts thereof, arms slidably mounted between the pairs of' lingers on the opposite sides of the pipe, and means for locking saidarms in different positionsof their longitudinal adjustment on said clamps, a cross plate pivoted to the forward ends of said arms, spaced fingers on said cross plate, yielding means for conwith said arms, for tending to move the fingers toward one limit of their pivotal adjustment, and a ilexible member connected with said plate for moving the fingers against the tension ofthe yielding mea-ns.

2. In a device of the class described, the.

combination of a wind stacker pipe, clamp devices mounted thereon in positions spaced from each other longitudinally of the pipe, pairs of spaced bracket fingers on the opposite sides of said clamp devices, rollers between the forward pairs ofy fingers near the lower parts thereof, rollers between the r`earward pairsV of fingers between the upper parts thereof, arms slidably mounted between-the pairs of ingers on the opposite sides of the pipe, and means for locking said arms in different'positions of their adjustment on said clamps, a cross plate pivoted to the forwvaid ends of said arms, 'spaced fingers on f members carried by said cla-mp devices, arms slidably mounted in the guide devices on opposite sides of the pipe and projecting yforwardly from the pipe, a straw guiding device pivoted to the forward ends of said arms, an upwardly arched hood `carried by the portions of said arms which project beyond the pipe, said hood terminating short of said straw guiding device and a flexible upwardly arched hood connecting said first hood to saidy pivoted straw `guidingF device.

Des Moines, Iowa, eptember 29, 1925.

CHARLIEk MCNABB.

clamp devicesdetachably vmounted in spaced relation thereon,guide 

